Hello, I’m writing to you all to help me make this image 100 times better. This is my very first time using luxrender. This is supposed to be a kitchen, but there are many things wrong with it that need fixing but I need help on how to do it.
So clearly it has many issues, firstly, it has been rendering for 46 hours and it still looks horrible pixilated (Im assuming the huge random beam of light is not helping the situation). I put a sun lamp outside of the window hoping it would make a sunny affect but that did not happen at all, theres a huge bright beam in the middle of the scene and im not sure why it’s there. I’m very new to lighting as well so if anyone could give me any clues as to how to make it look like the sun is just shining through the windows into the room it would make a huge difference.
I also used a red material set up for the apples in the bowl at the right of the orange clock but that doesn’t seem to come through, am I supposed to do that in luxrender because I just put a material in blender? ANY info would help me out. Thanks
1). Look at the sunlamp position then look at the geometry in the window, there might be a chance that blinds or other geometry block the sunlight.
2). Try turning the MaxRejects parameter way down and have the large mutation probability around 0.20-0.25 and custom-tweak the Russian-Roulette and QBVH settings, those can allow you to eke out quite a bit more speed.
3). Make sure the RGB values are below 0.8 in all cases, so with white it would be 0.8, 0.8, 0.8, (each channel not having a value above 0.8 in other cases) keep the specularity color very dark if using it as well.
4). If you wait a week or so, there’s probably going to be a new Luxrender 0.8 build with an algorithm called density-based sample rejection which, at some cost in speed, is capable of dramatically increasing the final render quality due to it rejecting outstanding samples like fireflies.
www.blenderguru.com did a kitchen scene setup and lux render a couple of months back. Maybe check it out as Andrew did mention some of the quirks about lighting and so forth
Also keep in mind that Lux is physically acurate, so you can set up lights in your scene according to the real world, so in a way it is easier to light, but there will be tweaks needed. And split up the lights into light groups, so you can tweak during render. Visit the LuxRender forums to get the real inside scoop on things there. There are plenty of helpful folks there to help you, and other resources such as a bit of documanetation.
I actually am working on his tutorial, that is where I got the kitchen Idea, I just made my own version of it, and I did what he said to do but I got the strange beam of light, and everything actually seems much easier in luxrender I just have to get used to it. I’m still going to look into those options Ace Dragon and I’ll probably go check out the luxrender forum too, thanks to all of you for your help I’ll post an update as soon as I get a result.
I’ll post an update as soon as I get a result.